Hose appliance



F. J. IMBACH.

' HOSE APPLIANCE.

APPLICATION FILED JULYZS, 1916.

1,331,923. l Patented Feb. 24, 192(1 To all whom it mayv concern:

s'rATEs PATENT OFFICE.

' HosE' APPLIANCE.

Application filed July 25, i916. Serial No. 111,118.

structions of the several parts whereby their operative coaction isbettered and also .cer-' tain objections heretofore ex'lstinga're re' moved.

The improved structure is illustrated in the accompanying drawingin which Fi' 1 is a longitudinal vertical section of the device taken on the line 11 of Fig.2. Fig. 2 is partly an end elevation and a vertical cross-section on the line 22 of Fig. 1. Fig. 3 is a longitudinal section of one-half part of the clamping sleeve also seen in section in numerals, to the said drawing, the'numera 4, designates an end of a piece of hose shown 1n section and whiclz is to be, attached to any desired tool .or ngine that is. so constructed as to be driven-by the power of fluid under pressure-such fluid as steam or compressed air. The parts that are herein shown combined 'with the said hose-end, 4, are the same in number as have heretofore been shown in some other devices of-analogous character, but certain improvements are hereiii disclosed in the partlcular construction of said parts whereby new and better results are obtained.

A nipple, 5, has a smooth tubular bore,

6, extending through it from end to end; an exterlor screw-thread, 7, which serves its outer or nipple end is provided with as means for attachment to a pneumatic tool x01 other device; an exterior circumferential shoulder, 8, surrounds the nippleat the base of the said screw.

- thread." A second shoulder, 9, is on the exterior of the nipple tube and is spaced from the said shoulder, 8', and this space forms a groove, 10, around the nipple. The inner end, 11, of the tubular nipple from the second shoulder, 9, fits or telescopes tightly Specification of Letters Patent.

J. IMBAoH, av

to a hose appliance Patented Feb. 24, 1920.

within the' bore, 12, of the hose, 4, as shown in Fig. 1. The exterior surface of the inner end of thetubular nipple, 5, has surroundlng rlng-shaped corrugations, :13, which embed'in the inner surface of the bore, 12,. of

the hose, 4, and serve to prevent the nipple tube withdrawing therefrom.

It is to 'be understood that that part of the rubber hose, 4, 'which surrounds the tubular metal nipple, will be subjected to compression when ,the solid nut, 14, is turned "on the split and tapered clamping sleeve, 15.

A culty has existed in accurately engaging t continuous internal ,threads, 16, of

the solid nut, with the disconnected external threads, 17, on the two segment or separate parts of said clamping sleeve.

In manufacturing the split metal clamp; ing sleeve, 15, the device is first shaped with an internal straight tube or bore, 18, into which the rubber hose-end, 4, is subsequently inserted. Commencingat the inner end of the metal sleeve about one-half of the exterior part of this metal sleeve, considered longitudinally, is straight as at, 19, and the other 'halfotsaid exterior has its greatest F 1. Y diameter at the center and adjoining said eferring now by the use of designating straight part, and therefrom tapers, as at, 20, toward the outer end of the sleeve. The exterior screw'threads, 17, are out only on the taperedparts, 20. At this stage of manufac' ure the sleeve has the form of a tube. Afte the exterior screw-threads, '17, have been formed, the entire tube or sleeve structure is cut longitudinally from end to end and two narrow strips of metal are entirely removed, one strip being diametrically opposite the other; 'a narrow slot, 21, see Fig.

1, in broken lines, indicates the longitudinal space produced by the removal of one of said narrow metal strips. In this wa one segment part or one half-part of sai clamping sleeve, has external screw-threads, 17, and the other half-part also has external screwthreads, 17 but of course there is a discon-- nection of the threads of'said two-half parts along the edges of said narrow slot, 21, and

this disconnection of threads causes the dif-' I other part also sliding,

ing movement disconnected the spiral line features, namely,

/ tubular nipple for the interior said disconnected threads.

said circumferential groove,

ing sleeve, the result of which was that the internal continuous screw-threads on the solid nut would not accurately engage the Thejpresent improved device obviates the difficulty just mentioned by .c'ombining in each one of the severalsegment parts that comprise the clamping sleeve, the following each segment partto have an exterior screw-thread, 17 and at its outer end to also have an inturned right-angle segment-shaped flange, 22, which fits into the 10, on the nipple, 5. A clamping sleeve having exterior screw-threads, 17, andmade-up of a plural number of segment parts thus constructed would allow the internal screwthreads 16 on a solid nut, 14, to accurately enga e and turn on the said exterior threads, 17, without any difliculty whatever.

The extreme end of the .split clamping sleeve has its interior edge beveled or rounded off, as at, 23, to prevent injury to the hose, when the latter is bent at such edge. In addition to this preventive of injury to the hose when bent, I have constructed the two metal parts, namely, the clamping sleeve for. theexterior, and the of the hose so that the end, 23, of the exterior clamping sleeve only will bear in contact with the hose by reason of the end, 11, ofthe tubular nipple terminating in the bore, 12, of the hose well back of the point where the rounded ,end of the clamping sleeve termi:

nates, as in Fig.1,

and this slight slid- Having describedv my invention I claim The combination with a nipple having a threaded outer" end and two spaced-apart a annular stop-shoulders thereon between the ing its ends atthe side of the inner one of outer and inner ends thereof, of a hose havsaid two stop-shoulders and around the inner end of the'nipple ,two clainping'members each having a semi-circular flange at one end and each member increasing in eX- ternal diameter from the said flange-end for a portion of its length only and said ends of the members being provided with screwthreads which increase in diameter as they recede from thesaid flange-end,the inner end of the clamping members being provided. with a flarededge which 'flares outwardly away from the circumference of the hose, and a solid nut having an angular ex terior and a tapered and threaded interior, said nut having auniform exterior dimen-- sion [at both ends on any angle measured from its axis outwardly and the smaller threaded interior end of the nut having position nearer to the flange-end" or the clamping-members than the larger threaded interior end thereof whereby the parts may- I be placed in position with respect to-the hose and the nut then passed over the threaded end of the nipple and screwed onto the tapered threads. a

In testimony whereof I afiix my signature in the presence of two witnesses.

Witnesses 7 FRANK J. IMBAOHQ 

